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Finding the Fourth Proportional to 8,508.54, 12,762.26 and 5,222.10

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Solution

The fourth proportional to 8,508.54, 12,762.26 and 5,222.10 is: 7,832.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,508.54 : 12,762.26 = 5,222.10 : x
  2. Step 2: Convert to fraction form
    8,508.54/12,762.26 = 5,222.10/x
  3. Step 3: Cross multiply
    8,508.54x = 12,762.26 × 5,222.10
  4. Step 4: Simplify right side
    8,508.54x = 66,645,797.95
  5. Step 5: Solve for x
    x = 66,645,797.95/8,508.54
  6. Step 6: Final answer
    x = 7,832.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.